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Accounts Payable and Accrued Expenses - Schedule of Product Warranty Liability (Details) (Parenthetical) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Payables and Accruals [Abstract] |  |
Accrued warranty in other liabilities | $ 110 | $ 0

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- Definition Accrued warranty in other liabilities. + References No definition available. + Details
Name: | PWFL_AccruedWarrantyInOtherLiabilities
Namespace Prefix: | PWFL_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_PayablesAndAccrualsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration